In general, I would find your T's approach weird -- if I was considering sticking with the T, I would ask her to as to how exactly being told that it's a sign of 'illness' is supposed to help in dealing with the said illness? Like how is being told that your wanting reassurance is a sign of OCD actually supposed to help you deal with OCD (assuming that's what she's working towards in your therapy)?

I may be approaching this in a rather cold fashion but for stuff like this, I've found that moving the conversation away from an exclusive focus on feelings (E.g. "I felt hurt that you said that" etc) to really getting at the purpose of why the T is doing / saying what they're doing / saying can really help. It can lead to an interesting conversation and / or (as in my case recently) a potential mea culpa on the T's part.